package com.wt.测试;

public class test {
    public static void main(String[] args) {
        A a = new A();
        a.file();
    }
}

class A extends  B{

}

class B{
    public void file(){
        System.out.println("飞");
    }
    private void run(){
        System.out.println("跑");
    }
    public static void jump(){
        System.out.println("跳");
    }
}

class C{

}
